Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

2,686 detections

Detects instances where AI coding and agent tools (e.g., Claude Code, Cursor, Copilot CLI, Ollama, LangGraph) create archive or database files containing potentially sensitive data and subsequently initiate network connections to non-AI-provider or non-developer services (exfiltration services or non-standard port connections).
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
102
Detects DNS queries, TLS SNI headers, and HTTP host headers associated with the known exfiltration domain 't.m-kosche.com' linked to the Mini Shai-Hulud malware.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects potential embedding inversion or extraction attempts by identifying callers exhibiting abnormally high volumes of similarity or vector search queries against RAG-enabled vector stores or cognitive search APIs within a short timeframe.
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Ankit Mehta@Secvyn
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SlimKQL
1 month ago
000
Detects potential embedding inversion or extraction attempts by identifying callers exhibiting abnormally high volumes of similarity or vector search queries against RAG-enabled vector stores or cognitive search APIs within a short timeframe.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
000
Detects outbound HTTP POST requests associated with the VelvetCake malware and Konni threat actor to the command-and-control (C2) domain 'medianewsonline.com'. The rule matches specific URI patterns ('/logout.php') and query parameters ('OKey=', 'Who=', 'Areyou=') commonly used for reconnaissance and data exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
103
The following analytic detects potential data exfiltration using plain HTTP POST requests. It leverages network traffic logs, specifically monitoring the `stream_http` data source for POST methods containing suspicious form data such as "wermgr.exe" or "svchost.exe". This activity is significant because it is commonly associated with malware like Trickbot, trojans, keyloggers, or APT adversaries, which use plain text HTTP POST requests to communicate with remote C2 servers. If confirmed malicious, this activity could lead to unauthorized data exfiltration, compromising sensitive information and potentially leading to further network infiltration.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 month ago
104
Detects anomalous, unauthorized access to machine learning model artifacts (e.g., .onnx, .pt, .h5) within object storage or model registries. The rule identifies suspicious patterns including high-volume file reads by non-ML team identities, lack of multi-factor authentication, or access from geolocations outside approved operating regions, indicative of potential model exfiltration or intellectual property theft.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects newly consented OAuth applications that immediately perform mass access or exfiltration of mail and file data across multiple mailboxes or drives within a short period, potentially indicating an attacker utilizing a malicious OAuth application.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
301
Detects high-volume, systematic querying of LLM inference endpoints, which may indicate unauthorized model extraction, distillation attempts, or targeted data exfiltration from an LLM.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
This rule establishes a daily baseline of request volumes to mail.google.com per user and per host using proxy logs. It identifies anomalous spikes in traffic or unexpected users/hosts accessing personal webmail, which may indicate data exfiltration using a legitimate web service.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
1 month ago
105
Detects anomalous outbound network connections initiated by security and developer tooling (Trivy, Checkmarx, LiteLLM, Telnyx). This behavior is consistent with supply-chain attacks, such as those attributed to the UNC6780/TeamPCP threat group, where compromised tooling is leveraged to exfiltrate sensitive cloud credentials or API keys to external, non-vendor infrastructure.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects anomalous, high-volume file access by a single process, followed by local file compression or archiving, and subsequent outbound data transfer to a non-internal IP address. This pattern is characteristic of automated agents (like those used in the GTG-1002/Anthropic AI-orchestrated campaigns) performing rapid data triage and staging for exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
This rule detects outgoing HTTP POST requests that contain a ZIP file with a filename prefix of 'StolenData_' in the request body. This is a known behavior of the TokenGrabber stealer family, which exfiltrates collected victim data (e.g., browser credentials, session tokens) to a remote server, often via a Discord webhook or similar infrastructure.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
000
Detects anomalous outbound network connections initiated by security and developer tooling (Trivy, Checkmarx, LiteLLM, Telnyx). This behavior is consistent with supply-chain attacks, such as those attributed to the UNC6780/TeamPCP threat group, where compromised tooling is leveraged to exfiltrate sensitive cloud credentials or API keys to external, non-vendor infrastructure.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects anomalous process activity that reads sensitive developer secrets (such as Anthropic, OpenAI, Gemini, or Hugging Face API keys) from common configuration or environment files, followed by an outbound network connection to a non-private IP address. This behavior is consistent with credential harvesting and exfiltration tactics used in supply chain attacks to hijack AI services.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects anomalous, high-volume file access by a single process, followed by local file compression or archiving, and subsequent outbound data transfer to a non-internal IP address. This pattern is characteristic of automated agents (like those used in the GTG-1002/Anthropic AI-orchestrated campaigns) performing rapid data triage and staging for exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects instances where a non-browser process initiates connections to commercial LLM provider APIs (DeepSeek, OpenRouter, Mistral) followed by a connection to Discord CDN/Webhook endpoints within a 15-minute window. This behavior is indicative of a process acting as an autonomous C2 agent that exfiltrates data after receiving instructions or processing information via an LLM.
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects instances where a non-browser process initiates connections to commercial LLM provider APIs (DeepSeek, OpenRouter, Mistral) followed by a connection to Discord CDN/Webhook endpoints within a 15-minute window. This behavior is indicative of a process acting as an autonomous C2 agent that exfiltrates data after receiving instructions or processing information via an LLM.
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Arnold Chan@slaz
Defender - KQL
1 month ago
002
Detects instances where a non-browser process initiates connections to commercial LLM provider APIs (DeepSeek, OpenRouter, Mistral) followed by a connection to Discord CDN/Webhook endpoints within a 15-minute window. This behavior is indicative of a process acting as an autonomous C2 agent that exfiltrates data after receiving instructions or processing information via an LLM.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects HTTP PUT requests that follow a specific pattern associated with MacSync Stealer's exfiltration mechanism. The rule identifies multipart data transmission by looking for specific URI parameters ('upload_id', 'chunk_index', 'total_chunks') used to piece together stolen ZIP files over an established HTTP connection.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
001
Detects hosts exhibiting multiple distinct file-manipulation commands (upload, download, stop, delete, append, copy, move) within a single session as identified by the PivotPipe C2 protocol, indicating potential staging, collection, or exfiltration activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
004
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